Sandblasting gun



FIG. 1 is a top left-side perspective view of a sandblasting gun showingmy new design;

FIG. 2 is a front elevational view;

FIG. 3 is a right side elevational view;

FIG. 4 is a top plan view; and

FIG. 5 is a bottom plan view thereof.

The ornamental design for a sandblasting gun, as shown and described.